Description: 270 / (53) To A Stack (63) Imbricated or Shingled Articles (64) With Counting or Bundling

Hierarchy/Derived subclasses

270 / 53

-> 63

-> 64

CIPO search

search just 270/64

This will show what classes derive from the input. Ex: entering 78/35 shows the derived classes and the search that can be used to find patents in those subclasses.

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